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bezier_curves.h
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1/*
2 * This program source code file is part of KiCad, a free EDA CAD application.
3 *
4 * Copyright (C) 2014-2021 KiCad Developers, see AUTHORS.txt for contributors.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
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11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * GNU General Public License for more details.
15 *
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17 * along with this program; if not, you may find one here:
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20 * or you may write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
24#ifndef BEZIER_CURVES_H
25#define BEZIER_CURVES_H
26
27#include <vector>
28#include <math/vector2d.h>
29
30template <typename T> class ELLIPSE;
31
38{
39public:
40 BEZIER_POLY( const VECTOR2I& aStart, const VECTOR2I& aCtrl1,
41 const VECTOR2I& aCtrl2, const VECTOR2I& aEnd );
42
43 BEZIER_POLY( const std::vector<VECTOR2I>& aControlPoints );
44
45 BEZIER_POLY( const std::vector<VECTOR2D>& aControlPoints )
46 : m_ctrlPts( aControlPoints )
47 {
48 m_minSegLen = 0.0;
49 }
50
60 void GetPoly( std::vector<VECTOR2I>& aOutput, int aMinSegLen = 0, int aMaxSegCount = 32 );
61 void GetPoly( std::vector<VECTOR2D>& aOutput, double aMinSegLen = 0.0, int aMaxSegCount = 32 );
62
63private:
65
67 std::vector<VECTOR2D> m_ctrlPts;
68};
69
70
71// TODO: Refactor BEZIER_POLY to use BEZIER
72
76template <typename NumericType>
77class BEZIER
78{
79public:
80 BEZIER() = default;
81
84 Start( aStart ),
85 C1( aC1 ),
86 C2( aC2 ),
87 End( aEnd )
88 {}
89
94};
95
99template<typename T>
100void TransformEllipseToBeziers( const ELLIPSE<T>& aEllipse, std::vector<BEZIER<T>>& aBeziers );
101
102#endif // BEZIER_CURVES_H
void TransformEllipseToBeziers(const ELLIPSE< T > &aEllipse, std::vector< BEZIER< T > > &aBeziers)
Transforms an ellipse or elliptical arc into a set of quadratic Bezier curves that approximate it.
Bezier curves to polygon converter.
Definition: bezier_curves.h:38
double m_minSegLen
Control points.
Definition: bezier_curves.h:64
BEZIER_POLY(const std::vector< VECTOR2D > &aControlPoints)
Definition: bezier_curves.h:45
std::vector< VECTOR2D > m_ctrlPts
Definition: bezier_curves.h:67
void GetPoly(std::vector< VECTOR2I > &aOutput, int aMinSegLen=0, int aMaxSegCount=32)
Convert a Bezier curve to a polygon.
Generic cubic Bezier representation.
Definition: bezier_curves.h:78
VECTOR2< NumericType > Start
Definition: bezier_curves.h:90
VECTOR2< NumericType > C1
Definition: bezier_curves.h:91
BEZIER()=default
VECTOR2< NumericType > C2
Definition: bezier_curves.h:92
VECTOR2< NumericType > End
Definition: bezier_curves.h:93
BEZIER(VECTOR2< NumericType > aStart, VECTOR2< NumericType > aC1, VECTOR2< NumericType > aC2, VECTOR2< NumericType > aEnd)
Definition: bezier_curves.h:82
This class was created to handle importing ellipses from other file formats that support them nativel...
Definition: ellipse.h:34